"As soon as I heard about the mass shooting, I thought it's better safe than sorry. So, I just made the decision, even if it's just rumors, I would rather him be safe today than worry that he's in school," Sadler said.

The latest rumor comes after two days of bomb threats made at the school. Students were evacuated Thursday after receiving word of the threat.

"We believe that all of the people involved here that are making the threats are friendly or talk with each other," Titusville Police Deputy Chief Todd Hutchinson said.

Three Astronaut High School students have been arrested as a result of the bomb threat. One 16-year-old student has been charged with criminal conspiracy, corruption by threat to public and threat to a place a destructive device. The other 16-year-old was charged with criminal conspiracy and corruption by threat to public. The third student was charged with disrupting a school facility and resisting arrest. More arrests could be made in the near future.

Hutchinson said while there's no sign of a threat, they're taking it seriously. In turn, it's taking up a lot of the department's resources.

"It's frustrating for everyone involved when we're using that amount of manpower and resources when they could be going to something else," Hutchinson said. "However, we're committed to school safety."

The students charged could also face restitution charges for the overtime used by investigators.

The school alerted parents through their app, email and phone calls.

Additional law enforcement was on the school's campus as a precautionary measure.

But Sadler said she's still not sure if she'll send her son to school come Monday.

"I'm still scared today. I am hoping that everybody is safe there today and next week. You know, what does next week gonna bring to the schools," Sadler said.

Deputy Chief Hutchinson said they're getting a lot of help from students at the school. They're hoping they'll use the SpeakOut hotline. It works like Crimeline, allowing people to call in tips anonymously. However, it's geared toward students in school.

A cash reward is being offered for information identifying people responsible for making or writing the bomb threats.